Firma spawalnicza Servo-Spaw wykonuję usługi spawalnia stali.
Welding steel, how to weld steel?
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Welding of steel with coated electrodes (also shielded metal arc welding – SMAW, or manual metal arc welding – MMA, method 111) – an arc welding method using a consumable metal electrode covered with a flux coating. An electric current (direct or alternating, as needed) produces an electric arc between the electrode and the metals being joined. During welding, the coating decomposes under the influence of high temperature, producing gaseous substances that serve as a shielding gas, and slag. Both of the above protect the weld from the effects of atmospheric air. The slag additionally covers the weld, reducing the rate of its cooling.
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TIG (tungsten inert gas) or GTAW (gas tungsten arc welding) steel welding – a welding method using a non-consumable tungsten electrode in a shield of inert gases such as argon, helium or their mixtures (nitrogen cannot be used, however) [1]. It is marked with code 141. The arc glows between a non-consumable electrode made of pure tungsten or tungsten refined with oxides such as thorium (IV) oxide (ThO2), zirconium (IV) oxide (ZrO2), lanthanum (III) oxide (La2O3) and others and the welded material. In most cases, the tungsten electrode (TIG torch) is connected to the negative pole, and the ground terminal to the positive pole of the welding machine [1]. This causes more heat to be released at the place where the weld is formed, and less load on the tungsten electrode (electrons flow from minus to plus).
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Welding of steel MAG (Metal Inert Gas / Metal Active Gas) – welding with a consumable electrode in a shield of inert gases (MIG, method 131) or active gases (MAG, method 135)[1]. Argon or helium are most often used as inert shielding gases. Carbon dioxide or its mixture with argon are used as active shielding gases.
We accept orders for serial welding of black steel details, as well as individual elements that have been damaged.
We weld black steel and also perform soldering of thin elements made of black steel, such as power steering hoses in cars.
We use MAG and TIG methods for welding steel, while soldering is done by introducing heat using a propane-oxygen torch, after which a filler metal is added (L-Ag40Sn hard solder).
Our company specializes in welding all materials, as well as joining thin-walled materials by means of soldering.